Jack



W. H. MOORE April 14, 1936.

JACK

Filed Dec; 5, 1954 2 Sheets-Sheet 1 I nventm' w. H. Moore I Attorney W.H. MOORE JACK Filed Dec. 5, 1934 2 sheets shet 2 Inventor AttorneyPatented Apr. 14, 1936 UNITED STATES PATENT OFFICE JACK ApplicationDecember 1 Claim.

The present invention relates to a jack designed for use in conjunctionwith an automobile lift such as is used in garages, automobile servicestations and the like for lubrication purposes.

The object. of the invention resides in the provision of a jack whichmay be mounted across a conventional lift in such a manner that the jackmay be applied to various parts of the automobile so as to facilitatedifferent lubricating steps.

A further important object of the invention resides in the provision ofa jack of this nature which is simple in its construction, easy tohandle, strong and durable, inexpensive to manufacture, thoroughlyefficient and reliable in use, and otherwise Well adapted to the purposefor which it is designed.

With the above and numerous other objects in view as will appear as thedescription proceeds, the invention consists in certain novel featuresof construction, and in the combination and arrangement of parts as willbe hereinafter more fully described and claimed.

In the drawings:

Figure 1 is a top plan view of a conventional lift showing my jackstructure mounted thereon.

Figure 2 is a detailed vertical transverse section taken substantiallyon the line 2-2 of Figure 1.

. Figure 3 is a vertical detail transverse section" taken-substantiallyon the line 3-3 of Figure 1.

Figure 4 is a. fragmentary plan View of the central portions of thechannel bars.

Figure 5 is a detail vertical section taken substantially on the line5-5 of Figure 1.

Referring to the drawings in detail it will be seen that numerals 5-5denote the runways of a conventional lift such as is used in garages,service stations and the like. My jack is adapted to be mounted acrossthese runways 5 as shown toadvantage in Figure 1. This jack includes aframe formed from a pair of channel irons 6-6 bolted together by bolts 1and spacers 8 so as to be disposed in spaced parallel co-extensiverelationship in rather close proximity to each other and the flanges ofthese channel irons 6 have at their centers notches 9 forming openingsin which is disposed a casting comprising a cylinder l0 having a flange1 I formed on its upper end and being annular and outwardly disposed andresting on the upper flanges of the channel irons and bolted orotherwise secured thereto as at l2. The cylinder i0 is internallythreaded. A threaded shank I4 is mounted in the cylinder 10 and at itslower end is formed with a sleeve l5 the bore of which is at rightangles to the shank l4 and through 3, 1934, Serial No. 755,794

this bore extends a handle bar [6 for operating the shank. On the upperend of the shank there is swivelly mounted a head l1 between which andthe "upper end of the shaft is interposed a ball bearing 18. A pin, I9fromthe head extends into a groove in the upper end of the shank so asto prevent accidental removal of the head.

This jack was designed primarily for the following three specific usesin car lubrication: To lift the front wheels clear of the drive whenlubricating 1929, 1930, 1931 Chevrolets. As is Well known, these modelsrequire that the Alemite fittings on the lower front spindles can onlybe properly lubricated when the front wheels are turned at the properangle. This operation of lubrication with my jack can be completed whenthe car is still on the lift. To lift the front axle of any model A Fordcar in order to remove the downward pressure of the axle against thespindles, thus allowing grease to be easily forced through the lowerZerk fittings in these spindles. And to lift the weight off from thesprings of any model V8 car when the springs are being sprayed. Thisparticular job is facilitated by the use of a special hardwood blockthat is counterbored to fit the head of the jack screw.

Many other uses arise during lubrication work Where the jack is adecided advantage, however, from actual use I have observed that thethree specific jobs outlined above will justify this jack.

It is thought that the construction, utility, operation, and advantagesof this invention will now be clearly understood by those skilled inthis art without a more detailed description thereof.

:The present embodiment of the invention has been described inconsiderable detail merely for the purposes of exemplification since inactual practice it attains the features of advantage enumerated asdesirable in the statement of the invention and the above description.

It will be apparent that changes in the details of construction, and inthe combination and arrangement of parts may be resorted to withoutdeparting from the spirit or scope of the invention as hereinafterclaimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is:

A jack of the class described comprising a frame consisting of a pair ofchannel irons arranged in parallel relation and with their channelsconfronting, said channel irons being bolted together, a verticallyarranged internally threaded cylinder, the confronting flanges of thechannel irons at an intermediate point formed with registering notchessurrounding the walls of the cylinder, a flange on the cylinder boltedto the channel irons thereby anchoring the cylinder against turning, ajack screw extending through the internal threads of the cylinder, saidjack screw having a centrally disposed single ball receiving socket inthe upper end thereof and a circumferential arranged groove below theend thereof, a ball bearing in said socket, a head on the end of saidscrew resting on said ball bearing, and a pin in said head extendinginto said groove for retaining said head on said screw.

WARD H. MOORE.

